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Bulk Cut-to-Length Self-Regulating Heat Trace Cable for Roof, Gutter & Pipe (KDL)
Overview

Bulk Cut-to-Length Self-Regulating Heat Trace Cable for Roof, Gutter, Downspout & External Pipe Freeze Protection
YeloDeer KDL is a professional bulk self-regulating heat trace cable for custom roof de-icing, gutter heating, downspout protection, external pipe freeze protection, and commercial winterization projects. Supplied by the reel, it can be cut and configured around the actual jobsite layout.
Designed for contractors, electricians, roof de-icing installers, facility maintenance teams, distributors, OEM buyers, and experienced project users, KDL offers standard 120V or 240V configurations, 5W/ft or 8W/ft output, and 100 ft, 250 ft, or 500 ft reels.
Quick Project Snapshot
Important Before You Order
This listing includes heating cable only. It is not a finished plug-in heat tape kit. Do not connect cut cable directly to power.
Before ordering, confirm the application, voltage, wattage, required cable length, maximum circuit length, number of circuits, connection method, mounting accessories, controller needs, and applicable GFCI/GFEP protection. Every cut circuit must be correctly connected, end-sealed, grounded, protected from moisture, and tested before energizing.
Complete Your Heat Trace System
A power connection and an end seal are normally required for every independent cable circuit. Splice, tee, junction-box, mounting, and control components may also be needed depending on the layout.
Explore YeloDeer options for hardwired power connection, end sealing, 120V plug-in connection with GFCI, and splice or tee applications.
Explore professional end-seal and tee/splice connection options for qualified outdoor or project-specific installations.
Using other brands of accessories: A compatible third-party connection or termination kit may be used only when its manufacturer confirms that it is suitable for the cable construction and dimensions, voltage, application, installation environment, and applicable electrical requirements. Do not select a kit by appearance alone. YeloDeer kits are available as convenient matched options; confirm the exact kit for your configuration before ordering.
Need Help With Sizing or a Bulk Order?
Questions about cable length, current availability, compatible accessories, installation, or contractor pricing? Send us your project details and we’ll help you identify the right configuration before ordering.
We usually reply within 1–2 business days. Please check your inbox and spam folder for our response.
Why Choose KDL Bulk Heat Trace Cable?
Best For
Two planning rules: Reel length is not the same as allowable circuit length, and self-regulating does not mean fully automatic. Long layouts may require multiple circuits, while roof and gutter systems usually benefit from a compatible snow/moisture controller.

Applications
Recommended Applications
KDL bulk heat trace cable is designed for professional freeze protection where cable length and circuit layout must match the jobsite.
Roof, Gutter & Downspout De-Icing
A roof de-icing system is designed to maintain a continuous drainage path—not to melt all snow from the roof. Plan the cable route from freeze-prone roof edges and valleys into the gutter and downspout so meltwater can leave the roof before refreezing.
For layout calculations, read the roof de-icing cable sizing guide.
External Pipe Freeze Protection
Standard KDL-CR cable may be installed on the outside of suitable metal or plastic pipes when the cable, fastening method, insulation, weather protection, voltage, and heat output are appropriate for the application. Give extra attention to exposed sections, valves, elbows, branches, and areas subject to wind.
For simpler fixed-length pipe solutions, view YeloDeer External Pipe Heating Cables.
Potable-Water In-Pipe Applications
Do not install standard KDL-CR bulk cable inside a water pipe. Potable-water in-pipe use requires the dedicated IPHC configuration based on KDL-CT construction, an ETFE outer jacket, and an approved in-pipe sealing kit.
Commercial, Facility, Agriculture & OEM Projects
Bulk cut-to-length cable is well suited to apartments, hotels, retail properties, schools, warehouses, maintenance buildings, greenhouses, farms, and OEM equipment where fixed-length products do not match the layout. Large or repeat projects can be planned around multiple circuits, custom reel quantities, special jackets, and project-specific control requirements.
Advanced Industrial Applications
Some KDL configurations may support qualified industrial or hazardous-location pipe and vessel tracing. These are project-specific applications. Confirm the exact cable model, area classification, voltage, wattage, jacket, T-code, approved connection kits, and local code requirements before ordering.
Bulk Cable vs Ready-to-Use Cable
For ready-to-use roof options, compare the YeloDeer 6W/ft Gutter Heat Trace Cable Kit and YeloDeer 8W/ft Self-Regulating Gutter Heat Trace Cable.
When This Standard Bulk Cable Is Not the Right Choice
- A simple plug-in cable is required.
- Compatible connection and end seal kits cannot be installed.
- Electrical connections cannot be protected from moisture.
- The cable would be used inside a pipe without an approved IPHC configuration.
- The project is a hazardous location that has not been reviewed and approved.
- The goal is emergency removal of a large existing ice dam.
Specifications
Product Specification Summary
| Product Type | Bulk cut-to-length self-regulating heat trace cable |
| Main Cable Platform | KDL self-regulating heating cable |
| Standard Jacket | CR construction with EPR outer jacket |
| Custom Jacket | CT construction with ETFE fluoropolymer outer jacket |
| Cable Size (-CR Standard) | Approx. 0.49 × 0.23 in / 12.5 × 5.9 mm |
| Cable Size (-CT Custom) | Approx. 0.47 × 0.21 in / 11.9 × 5.3 mm |
| Primary Applications | Roof de-icing, gutter heating, downspout freeze protection, and external pipe freeze protection |
| In-Pipe Option | Dedicated IPHC configuration based on KDL-CT construction |
| Certification | Certified by CSA Group with the cCSAus mark |
| Standard Voltage | 120V and 240V |
| Standard Power | 5W/ft and 8W/ft |
| Custom Power | 3W/ft, 10W/ft, 12W/ft, or project-specific wattages |
| Low-Voltage Options | 12Vdc, 24Vdc, 36Vdc, and 48Vdc configurations may be available |
| Standard Reel Sizes | 100 ft, 250 ft, and 500 ft |
| Custom Reel Sizes | 1000 ft, 2000 ft, or other project reel lengths may be available |
| Maximum Continuous Exposure | 85°C |
| Maximum Circuit Size | Up to 32A for qualified configurations |
| Use Type | Heating cable only; connection and termination kits sold separately |
CR vs CT Jacket Construction
Configuration Selection Guide
Custom Project Options
Custom configurations are subject to technical confirmation, minimum quantity, production availability, and the applicable certification scope.
Maximum Circuit Length
A reel length is not an allowable circuit length. Maximum circuit length depends on the exact cable model, voltage, wattage, breaker size, cold-start temperature, ambient conditions, voltage drop, installation method, and ground-fault protection. Self-regulating cable draws higher current during cold startup, so long layouts may require multiple circuits.
Installation
Installation Overview
This bulk self-regulating heat trace cable requires professional system planning and field termination. Follow the instructions supplied with the exact cable and accessory configuration.
- Confirm the application, installation environment, cable jacket, voltage, and wattage.
- Measure the complete roof, gutter, downspout, or external pipe layout.
- Calculate total cable required, maximum allowable circuit length, breaker capacity, and number of circuits.
- Select compatible power connections, end seals, splice or tee kits, mounting hardware, controls, and electrical protection.
- Cut the cable only after the circuit design has been confirmed.
- Install and weather-seal the power connection and end termination for each circuit.
- Mount the cable without crushing, kinking, sharply bending, or damaging the jacket.
- Complete grounding, bonding, moisture protection, and GFCI/GFEP protection as required.
- Inspect and electrically test every circuit before insulation, concealment, or winter operation.
System Components You May Need
Shop Connection & Termination Kits, Professional Type 4X / Pro Connection Kits, Roof Clips, and the Smart Roof De-Icing Controller.

Critical Installation Notes
Control Options
Self-regulating cable changes heat output with temperature, but it does not detect snow or moisture. For automatic roof and gutter operation, consider the YeloDeer Smart Roof De-Icing Controller. For suitable pipe systems, view the YeloDeer Pipe Heat Tape Thermostat.
Recommended Installer
Field-cut and hardwired heat trace systems should be installed by a qualified electrician, heat-trace contractor, roof de-icing installer, or experienced facility maintenance professional familiar with the product instructions and local electrical requirements.
FAQ
Product & Ordering
Is this cable ready to plug in?
No. This listing is for bulk heating cable only. Each cut circuit requires a compatible power connection, end seal, grounding, electrical protection, and testing before it can be energized.
Who should choose bulk cut-to-length heat trace cable?
It is intended for contractors, electricians, roof de-icing installers, facility maintenance teams, distributors, OEM buyers, and experienced project users who need custom lengths and professional field termination.
Are heat trace cable, heat tape, heating cable, and roof de-icing cable the same?
These search terms often overlap. “Heat trace cable” and “heating cable” are broad industry terms for freeze protection or temperature maintenance. “Heat tape” is a common consumer term, especially for pipe freeze protection. “Roof de-icing cable” describes cable used to maintain roof, gutter, and downspout drainage paths.
What standard options are available?
Standard options are 120V or 240V, 5W/ft or 8W/ft, and 100 ft, 250 ft, or 500 ft reels. Qualified custom projects may be available in other wattages, low-voltage DC, ETFE jacket construction, IPHC in-pipe configurations, and custom reel lengths.
How do I choose 120V vs 240V and 5W/ft vs 8W/ft?
120V is commonly used for smaller or shorter projects; 240V is often selected for longer runs and larger commercial systems. 5W/ft commonly supports standard freeze protection, while 8W/ft provides higher output for colder or more exposed conditions. Final selection should consider electrical service, circuit length, climate, roof layout, pipe size, insulation, and heat loss.
Can a 500 ft, 1000 ft, or 2000 ft reel be one circuit?
Not automatically. Reel length is the amount of cable supplied, not the maximum powered length. The reel may need to be divided into multiple circuits based on the exact model, voltage, wattage, breaker size, cold-start conditions, and installation method.
Certification, Jacket & Application
Is this cable certified for U.S. and Canadian projects?
The KDL platform is certified by CSA Group and carries the cCSAus mark within its approved certification scope. Confirm that the exact cable model, rating, jacket, accessories, and intended application match the project specification and local authority requirements.
Is this cable UL Listed?
No. This product should not be described as UL Listed or UL Certified. Its listed certification is the CSA Group cCSAus mark.
What is the difference between CR and CT construction?
Standard KDL-CR uses an EPR outer jacket for qualified roof, gutter, downspout, and external pipe applications. Custom KDL-CT uses an ETFE fluoropolymer outer jacket for qualified special projects, including the dedicated IPHC in-pipe configuration.
Can this cable be installed inside a potable-water pipe?
Not as standard KDL-CR cable. Potable-water in-pipe use requires the dedicated IPHC configuration based on KDL-CT construction and the approved in-pipe sealing kit. Do not place standard external heat trace cable inside a water pipe.
Can this cable be used on external pipes?
Yes, on suitable metal or plastic pipes when the cable, mounting method, insulation, weather protection, and electrical design are appropriate. Confirm compatibility for the pipe material and operating environment before installation.
Accessories, Installation & Control
What accessories are required?
At minimum, each independent circuit normally needs a compatible power connection and end seal. Depending on the layout, you may also need splice or tee kits, a junction box, roof clips, downspout hangers, fiberglass tape, pipe insulation, a controller or thermostat, and code-required ground-fault protection.
Can I use third-party connection kits or accessories?
Only when the accessory manufacturer confirms compatibility with the cable construction and dimensions, voltage, application, installation environment, sealing method, and applicable electrical requirements. Do not assume that a similar-looking kit is compatible.
YeloDeer offers Connection & Termination Kits and Professional Type 4X / Pro Connection Kits for customers who prefer YeloDeer system options. Confirm the exact kit before ordering.
Does this installation require GFCI or GFEP protection?
Fixed outdoor de-icing and heat-tracing systems commonly require appropriate ground-fault protection. A qualified electrician should confirm the required device, breaker capacity, grounding, bonding, and local code requirements for the exact installation.
Can self-regulating cable overlap?
Self-regulating cable can tolerate incidental overlap when allowed by the exact product instructions and normal operating conditions. Never crush, kink, sharply bend, damage, or improperly secure the cable.
Do I need a thermostat or roof de-icing controller?
A self-regulating cable can reduce its output as it warms, but it does not sense snow or moisture. A compatible controller is strongly recommended for efficient automatic roof and gutter operation; a suitable thermostat may be used for applicable pipe systems.
Can roof heat cable remove an existing ice dam?
Roof heat cable is intended to help prevent ice dams by maintaining drainage paths. It should not be treated as an emergency tool for removing a large existing ice dam.
Project Support
What information should I send for sizing, bulk availability, or project help?
Email yelodeer@yelodeer.com with the application, project photos or drawings, measurements, total estimated cable length, available voltage, preferred wattage, roof or pipe details, lowest expected temperature, number of circuits, accessory needs, controller needs, project location, required quantity, and delivery timing.
Guides
Bulk Heat Trace Project Planning Guide
Use these planning notes to identify the right system before purchasing or cutting cable. Final electrical design and installation must follow the instructions for the exact KDL configuration, accessories, and local code requirements.
How Self-Regulating Heat Trace Cable Works
A self-regulating, or self-limiting, heating cable uses parallel bus wires and a temperature-responsive conductive core. Colder cable sections produce more heat; as a section warms, its output decreases. This local response is useful for uneven roof, gutter, downspout, and pipe conditions.
This feature helps manage heat output, but it does not replace circuit planning, compatible accessories, ground-fault protection, or an automatic roof controller.
Reel Length, Cut Length & Circuit Length
| Reel Length | Total cable supplied on the spool. |
| Cut Length | The cable length cut for one planned roof, gutter, downspout, or pipe section. |
| Circuit Length | The powered cable length permitted on one electrical circuit under the specified conditions. |
Confirm circuit limits before cutting. A large reel can supply several independent circuits, and every circuit needs its own approved connection and end termination.
Planning a Roof, Gutter & Downspout Drainage Path
Start with one question: Where must meltwater travel to leave the roof safely? Plan a continuous heated path across freeze-prone roof edges or valleys, through the gutter, and down the downspout.
Use approved mounting hardware and avoid sharp metal edges. Review the YeloDeer Installation Guide and Roof Clips.
Planning External Pipe Freeze Protection
Pipe heat-loss conditions depend on pipe material, diameter, insulation, exposure, wind, lowest ambient temperature, desired pipe temperature, valves, elbows, and branches. Heat trace supplies heat; insulation slows heat loss. Most exposed pipe systems need both.
External and in-pipe cable are not interchangeable. Use the dedicated In-Pipe Heating Cable Collection for approved potable-water in-pipe applications.
Planning Accessories and Independent Circuits
A complete heat-trace system includes more than cable. For each circuit, identify the power entry, end termination, mounting method, electrical protection, and control method. Add splice or tee components only where the system design permits them.
Planning Commercial, Contractor & Bulk Orders
For projects that exceed the listed stock, require repeat purchasing, or use multiple buildings or circuits, prepare a simple schedule showing cable configuration, reel quantity, circuit count, accessories, controls, and required delivery date. YeloDeer can review availability, custom configurations, and eligible bulk-order options before checkout.
Use the Project & Bulk Order Consultation page or email yelodeer@yelodeer.com.
Final Checklist Before Ordering
Final takeaway: A successful heat-trace project starts with the drainage path or heat-loss problem, then works backward to cable output, voltage, circuit length, accessories, controls, and installation. If any of those details are uncertain, contact YeloDeer before ordering or cutting the cable.
